A circuit board inspection tool

Abstract

The utility model relates to the technical field of circuit board production, concretely to a circuit board inspection tool, including the casing, the casing one side is provided with the light box, the lower frame and the upper frame, the lower frame and the upper frame opposite side all are set up and offer the circuit board insertion slot, the lower frame fixed mounting is in the casing, the upper frame sliding installation is in the casing, and the upper frame is connected with the light shield subassembly. This circuit board inspection tool, through setting up the light box, and setting up the upper frame and the lower frame in the light box both sides respectively, can insert the circuit board from one side in the device, makes the circuit board close to the light box surface movement, through the light irradiation, exposes the circuit board surface defect very well, through setting up the light shield subassembly, can block the extra light, avoids the attention of the operator that the residual light disperses, thereby improves the work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, specifically to a circuit board inspection fixture. Background Technology

[0002] A circuit board (PCB) is the core component of electronic devices, used to connect and support various electronic components, enabling electrical connections and functional integration. The advent of PCBs has made the design and manufacturing of electronic devices more efficient, allowing for the connection and function of complex circuits within a limited space. After production, PCBs must undergo inspection before leaving the factory.

[0003] Some circuit boards, such as printed antenna boards, have relatively low precision requirements and do not require high-precision scanning machines; manual visual inspection is sufficient. However, during manual inspection, defects on the circuit board surface cannot be well exposed and captured by the naked eye. Sometimes, operators need to move the circuit board under a light fixture for illumination and constantly adjust its position to carefully inspect the surface defects. The lack of specialized tools makes this process cumbersome and inefficient. Therefore, we propose a circuit board inspection fixture. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a circuit board inspection fixture, which solves the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A circuit board inspection fixture includes a housing. A light box, a lower frame, and an upper frame are provided on one side of the housing. Slots for inserting circuit boards are provided on opposite sides of the lower frame and the upper frame. The lower frame is fixedly mounted on the housing, and the upper frame is slidably mounted on the housing. A light-shielding component is connected to the upper frame.

[0006] Furthermore, the light-shielding assembly includes two support seats, both of which are fixedly mounted on the housing. A rotating roller is rotatably mounted between the two support seats. A light-shielding cloth is wound around the periphery of the rotating roller, and the two ends of the light-shielding cloth are respectively fixedly connected to the rotating roller and the upper frame.

[0007] Furthermore, both ends of the roller are connected to the two support seats via spiral springs.

[0008] Furthermore, the housing has two sliding grooves on one side, which are respectively located on both sides of the light box. Two sliders are fixedly installed on one side of the upper frame, and the two sliders are slidably embedded in the two sliding grooves. The sliders are elastic.

[0009] Furthermore, both the lower frame and the upper frame are provided with multiple elastic guide members, which are distributed at equal intervals in a straight line.

[0010] Furthermore, the elastic guide includes a slide rod, which is slidably installed in the lower frame or the upper frame. A bracket is fixedly installed at one end of the slide rod, and a guide wheel is rotatably installed on the bracket. One side of the bracket is connected to the lower frame or the upper frame by a spring.

[0011] Furthermore, there are multiple light boxes, which are distributed in a straight line at equal intervals.

[0012] By employing the above technical solution, this utility model provides a circuit board inspection fixture. It possesses at least the following beneficial effects: This circuit board inspection fixture, by setting up a light box with upper and lower frames on both sides, allows the circuit board to be inserted into the device from one side, moving it close to the surface of the light box. Through illumination, defects on the circuit board surface are well exposed. By setting up a light-shielding component, excess light can be blocked to prevent residual light from distracting the operator's attention, thereby improving work efficiency. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the shell in an embodiment of the present utility model; Figure 3 This is a side view of the light-shielding component in an embodiment of the present invention; Figure 4 This is a schematic diagram of the groove and the slider in an embodiment of this utility model; Figure 5 This is a schematic diagram of the elastic guide component in an embodiment of this utility model.

[0014] In the diagram: 1. Housing; 101. Slide groove; 2. Light box; 3. Lower frame; 4. Upper frame; 401. Slider; 5. Light-shielding assembly; 501. Support base; 502. Rotary roller; 503. Light-shielding cloth; 504. Spiral spring; 6. Elastic guide; 601. Slide rod; 602. Bracket; 603. Guide wheel. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5 The present invention provides a technical solution as follows: A circuit board inspection fixture includes a housing 1 with legs at the bottom and a light box 2 on one side for illuminating the circuit board, making defects on the board more obvious and easier for operators to observe. Multiple light boxes 2 are arranged equidistantly in a line along the length of the housing 1. Each light box 2 is independent and can be controlled independently, thus avoiding energy waste when inspecting circuit boards of different lengths.

[0017] The housing 1 has a lower frame 3 and an upper frame 4 on one side of the light box 2, with the upper frame 4 and lower frame 3 located at opposite ends of the light box 2. Each of the lower frame 3 and upper frame 4 has a slot for inserting a circuit board, thus limiting the circuit board's position and eliminating the need for operators to constantly manually fix it. Specifically, the lower frame 3 is fixedly mounted on the housing 1, while the upper frame 4 is slidably mounted on the housing 1, allowing for height adjustment. A light-shielding component 5 is connected to the upper frame 4 to shield the light box 2 exposed above the circuit board, preventing excessive light from distracting the operator.

[0018] Combination Figure 3 , Figure 4 As shown, the housing 1 has two sliding grooves 101 on one side of the light box 2. The two sliding grooves 101 are respectively located on both sides of the light box 2. Two sliders 401 are fixedly installed on one side of the upper frame 4. The two sliders 401 are slidably embedded in the two sliding grooves 101. The sliders 401 are made of engineering plastic, which is elastic and can be locked in the sliding grooves 101 through elastic deformation to achieve self-locking. After the operator applies a certain external force, the upper frame 4 can be driven to move along the direction of the sliding grooves 101, so that the distance between the upper frame 4 and the lower frame 3 is adapted to the length of the circuit board to be inspected. After the external force is removed, the sliders 401 can be locked in the sliding grooves 101 by their own elasticity to limit the upper frame 4 and prevent the upper frame 4 from moving without human intervention.

[0019] In this embodiment, the light-shielding component 5 includes two support seats 501, both of which are fixedly mounted on the housing 1 and symmetrically distributed on both sides above the light box 2. A rotating roller 502 is rotatably mounted between the two support seats 501. A light-shielding cloth 503 is wound around the periphery of the rotating roller 502 to shield the light box 2. One end of the light-shielding cloth 503 is fixedly connected to the periphery of the rotating roller 502, and the other end of the light-shielding cloth 503 passes through the housing 1 and is fixedly connected to one side of the upper frame 4. An opening is provided on the housing 1 for the light-shielding cloth 503 to pass through, so that when the upper frame 4 moves downward, it can drive the light-shielding cloth 503 to unwind.

[0020] Furthermore, both ends of the rotating roller 502 are connected to two support seats 501 via spiral springs 504. By setting the spiral springs 504, when the upper frame 4 moves upward, the rotating roller 502 can automatically reset under the elastic force, thereby automatically winding up the light-blocking cloth 503. It is worth noting that the elastic force of the spiral springs 504 cannot overcome the gravity of the upper frame 4 and its internal structure.

[0021] Combination Figure 3 and Figure 5 As shown, multiple elastic guides 6 are provided in both the lower frame 3 and the upper frame 4. The multiple elastic guides 6 are distributed at equal intervals in a straight line. On the one hand, they can elastically limit the circuit board, and on the other hand, they can guide the circuit board to facilitate the movement of the circuit board on the surface of the light box 2.

[0022] Specifically, each elastic guide 6 includes a slide rod 601, which is slidably installed inside the lower frame 3 or the upper frame 4. A bracket 602 is fixedly installed at one end of the slide rod 601, and a guide wheel 603 is rotatably installed on the bracket 602. The guide wheel 603 is used to contact the circuit board, limiting and guiding the circuit board. Furthermore, a spring is sleeved around the outer periphery of the slide rod 601. When the elastic guide 6 is located inside the upper frame 4, both ends of the spring are connected to the bracket 602 and the upper frame 4 respectively. When the elastic guide 6 is located inside the lower frame 3, both ends of the spring are connected to the bracket 602 and the lower frame 3 respectively. This elasticity presses the upper and lower ends of the circuit board together, making the circuit board fit more closely to the surface of the light box 2.

[0023] When using the circuit board inspection fixture of this utility model, the height of the upper frame 4 is first adjusted according to the batch of circuit boards to be inspected, so that the distance between the upper frame 4 and the lower frame 3 is adapted to the height of the circuit board during inspection. During adjustment, the operator needs to manually apply a certain force to the upper frame 4, causing the upper frame 4 to move downward. The slider 401 on one side of the upper frame 4 slides inside the slide groove 101. When the upper frame 4 moves, it will pull one end of the light-shielding cloth 503, so that the rotating roller 502 will automatically unroll the light-shielding cloth 503. The light-shielding cloth 503 will block the part of the light box 2 exposed above the upper frame 4. After the operator releases the hand, the friction between the slider 401 and the slide groove 101 and the elastic force of the spiral spring 504 can be balanced with the weight of the upper frame 4 and its internal structure, so that the upper frame 4 is fixed in the moved position.

[0024] When inspecting the circuit board, first open a certain number of light boxes 2 according to the height of the circuit board after it is placed vertically. Then, insert the circuit board vertically into the slots on the upper frame 4 and the lower frame 3, so that the circuit board moves along the slots. During this process, defects on the surface of the circuit board can be inspected and recorded.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit board inspection fixture, comprising a housing (1), characterized in that, The housing (1) is provided with a light box (2), a lower frame (3) and an upper frame (4) on one side. The lower frame (3) and the upper frame (4) are provided with slots for inserting circuit boards on opposite sides. The lower frame (3) is fixedly installed on the housing (1), and the upper frame (4) is slidably installed on the housing (1). A light-shielding component (5) is connected to the upper frame (4).

2. The circuit board inspection fixture according to claim 1, characterized in that, The light-shielding component (5) includes two support seats (501), both of which are fixedly installed on the housing (1). A rotating roller (502) is rotatably installed between the two support seats (501). A light-shielding cloth (503) is wrapped around the circumference of the rotating roller (502). The two ends of the light-shielding cloth (503) are fixedly connected to the rotating roller (502) and the upper frame (4) respectively.

3. The circuit board inspection fixture according to claim 2, characterized in that, The two ends of the roller (502) are connected to the two support seats (501) by spiral springs (504).

4. The circuit board inspection fixture according to claim 1, characterized in that, The housing (1) has two sliding grooves (101) on one side, and the two sliding grooves (101) are respectively located on both sides of the light box (2). Two sliders (401) are fixedly installed on one side of the upper frame (4). The two sliders (401) are slidably embedded in the two sliding grooves (101) respectively, and the sliders (401) are elastic.

5. The circuit board inspection fixture according to claim 1, characterized in that, Multiple elastic guides (6) are provided in both the lower frame (3) and the upper frame (4), and the multiple elastic guides (6) are distributed at equal intervals in a straight line.

6. The circuit board inspection fixture according to claim 5, characterized in that, The elastic guide (6) includes a slide rod (601), which is slidably installed in the lower frame (3) or the upper frame (4). A bracket (602) is fixedly installed at one end of the slide rod (601), and a guide wheel (603) is rotatably installed on the bracket (602). One side of the bracket (602) is connected to the lower frame (3) or the upper frame (4) by a spring.

7. The circuit board inspection fixture according to claim 1, characterized in that, There are multiple light boxes (2), and the multiple light boxes (2) are distributed in a line at equal distances.

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